Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5154875 | Slide gate nozzle or shut-off control valve for metallurgical vessel and refractory shut-off parts thereof | — | 1992-10-13 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5154875 | Slide gate nozzle or shut-off control valve for metallurgical vessel and refractory shut-off parts thereof | — | 1992-10-13 |